amorphic allele - molecular evidence
opus element insertion at -301 relative to the transcription start site plus insertion of a Stalker2 element 6kb downstream of the tub transcription unit.
abnormal dorsal/ventral axis specification | embryonic stage | maternal effect (with tubR5.6)
lethal | maternal effect
tub7/tubR5.6 females produce embryos that span a phenotypic range from severely dorsalised to wild type.
Weakly dorsalised embryos with a variable phenotype.